1 files changed, 1 insertions, 1 deletions

diff --git a/lisp/mh-e/mh-identity.el b/lisp/mh-e/mh-identity.el
index dc076751865..b0a1430928b 100644
--- a/lisp/mh-e/mh-identity.el
+++ b/lisp/mh-e/mh-identity.el
@@ -126,7 +126,7 @@ The field name is downcased. If the FIELD begins with the character
 header field."
   (or (cdr (assoc (downcase field) mh-identity-handlers))
       (and (eq (aref field 0) ?:)
-           (error (format "Field %s - unknown mh-identity-handler" field)))
+           (error "Field %s - unknown mh-identity-handler" field))
       (cdr (assoc ":default" mh-identity-handlers))
       'mh-identity-handler-default))